I found that these were actually a bit tricky to convert to PDF, with even (normally) reliable tools like Calibre outputting PDFs with really small text... I stumbled across mobi2html, part of mobiperl (https://dev.mobileread.com/trac/mobiperl).
Apart from a couple of character encoding bugs, it seems to do a good job. I've uploaded the eBooks as html here:
I'm pretty happy to not see PDFs anymore -- especially for ebooks.
I can easily convert these to PDFs, but I can actually read them on my Kindle or iPad. I can't do that the other way around from PDF (though I technically can read a PDF on either, it's a far less pleasant experience).
The C one is using the most incredibly small font I've ever seen in a document. It took me a while to realize there was actual content in the pages. Then I zoomed in a thousand or so percent and could make out words.
Thanks for converting those to PDF, unfortunately none of the hyperlinks work either in browser, or in a PDF reader like OS X's preview. Don't know about Windows or Linux.
Just convert them with Calibre to whatever format you want. Mobi is much better than PDF as a starting point to convert to other formats, ebook formats in general are much more flexible and convertible. Converting from PDF to ebook is such a pain...
For those who might be looking for a desktop application, Calibre http://calibre-ebook.com/ is an awesome FOSS ebook manager. Organizes, converts between formats, etc.
While Calibre is a brilliant application for basic document management and conversion it should be mentioned that it is highly unlikely that it will convert a PDF eBook perfectly. I've got a bunch of free CS books I've collected over the years and outside of plain-text books it's struggled to convert everything.
erobots = ignore robots, for some reason this site blocks wget
also, -i filename.txt will grab a list of urls for a file and download them, so no need for 'wget <url>'. adding -F will treat that local file as HTML and grab all the links out of it for download.
I just submitted the page to HN, after seeing it in Spolsky or Atwood's twitter feed, I didn't design it. I think the curator has his contact details on that site though, if care to ask him directly.
I downloaded those where I already know the technology well. That way, I hope to pick up a couple of neat tips and tricks every once in a while when I have a few minutes to read.
http://www.faqoverflow.com/
Instead of eBooks, the content is visible directly in the browser.